Here are some interesting KLM liveries that I have seen on a recent trip to Schiphol:
KLM retro livery, spotted @AMS . This Boeing 737 was painted this way in order to celebrate the Dutch airline's 90th birthday, but I am not sure to what historical period does this livery correspond. Comments and suggestions welcome!
A KLM Boeing 737 in SkyTeam livery, alliance-themed liveries are becoming more and more common!